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2 Sheets-Sheet 1. T. MULLER. GBNTRIFUGAL MACHINE.

(No Model.)

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(No Model.) 2'Sheets'-Sheet 2.

T. MLLER. GBNTRIFUGAL MACHINE.

No. 455,832. Patented July 14,1891.

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UNITED STATES PATENT OEEICE.

SELVIG du LANGE, OF

CENTRIFUGAL MACHINE.

SPECIFICATION forming` part of Letters Patent No. 455,832,1ated July 14, 1891.

Application tiled August 13, 1890. Serial No. 361,885. (No model.)

To all whom, t may concern.-

Beit known that l, THEoDoR MLLER, a subject of the King of Prussia, AGerman Emperor, and a resident of Magdeburg, in the Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in Centrifugal Machines for Pulpy Materials, of which the following is an exactspecication.

My invention relates to improvements in centrifugal machines, in which theV rotating drum is continually fed with the materials to be dried and is continually emptied of the dry materials. I attain this object by the mechanism illustrated in the accompanying drawings, in Which similar letters Adenote similar parts throughout the differentviews, and of which- Figure l is a vertical longitudinal section through a Fig. 2. Fig. 2 is avertical cross section through y Fig-l.

The standards s s bear the shaft 4w with the pulleys d d', and the drum A B by the ribs fr fr and by the cross-piece r r. The shaft w is hollow and has the openings o o, so that hot air or steam may be fed by the pipe o to heat the contents of the drum. The part p of the cylindrical drums p p has the perforations c e for guiding the hot air or steam into the drum A B, consisting of the perforated cylinder a and of the solid top plate b, of conica-l form.

The drum A B is inclosed by the caseD D D2, consistingof the cylindrical part D and of the front plates D D2.' To the front plate D2 the tube K is rmly attached, provided with the cylindrical projection Z, serving as bearing for the conical part b of the drum A B. The tube K is fed with the material to be dried by the pipe T and by the piston C, moved by lever c c2 and bar c3, screw-wheel c, and worm c5, the latter being iiXed to the shaft w of the centrifugal machine. The case D D D2 has the outlets E F G I.

The working of the centrifugal-machine is as follows: The pipe T is filled with the pulpy materials to be dried, and by means of the piston O moved to and fro by the machine. A portion of this material is pressed into the tube K and into the rotating drum B A. Whep reaching the perforated part A of the drum, the material is freed from its wetness by the effect of the quickly-rotating drum, the fluidis discharged through the aperture F E, the material is continuously pressed forward by the feeding mechanism described above, and'when reaching. that part of the drum which lies opposite to the perforated drum p the material is exposed to the iniiuence of the hot air, passing the perforations of the drum p. The hot air escapes iinally throughtube G, and the dry materials leave the drum at H. The machine may be used for drying, clearin g, and Washing, as required.

In case sugar is to be Whitened steam in lieu of hot air mustbe led through the shaft w. NVhen used for cleaning or Washing, Water must be led to the drum A B through the bored shaft W. The machine may be used for Washing any material.

Having thus fully described the nature of my invention, what I desire to secure by Let ters Patent of the United States is- The combination of the horizontal drum p p', having perforations c for driving air, steam, water, or other agents into the space between the drums, and of the horizontal drum A B, being firmly connected to drum p p', with the hollow bearing Z. communicating with the feeding device T C K, as Well as with the space between the drums, and serving as bearing for drum A B, said drums sitting on the horizontal hollow shaft fw, having apertures o and communicating with pipe o for delivering air, steam, water, or any other agents into drum p', for the purpose as described.

In testimony whereof Ihave signed this specification in the presence of two subscribing Witnesses.

'rHEoDoR MLLER.

Witnessesr RUDOLF BAUER, W. EGGELING. 

